West Thumb
# West Thumb

West Thumb may refer to the following features in Yellowstone National Park:

* The most western portion of Yellowstone Lake formed by a volcanic eruption 174,000 years ago
* West Thumb Geyser Basin, a thermal area on the shores of that portion of Yellowstone Lake
* West Thumb Junction, used to refer to the general area of the park, often used interchangeably with nearby Grant Village
